/**
  * {@inheritDoc}
  *
  * @see
  *     org.eclipse.emf.eef.eefnr.parts.FlatReferenceTableSamplePropertiesEditionPart#addFilterFlatreferencetableOptionalProperty(ViewerFilter
  *     filter)
  */
 public void addFilterToFlatreferencetableOptionalProperty(ViewerFilter filter) {
   flatreferencetableOptionalProperty.addFilter(filter);
 }
 /**
  * {@inheritDoc}
  *
  * @see
  *     org.eclipse.emf.eef.eefnr.parts.FlatReferenceTableSamplePropertiesEditionPart#addFilterFlatreferencetableRequiredProperty(ViewerFilter
  *     filter)
  */
 public void addFilterToFlatreferencetableRequiredProperty(ViewerFilter filter) {
   flatreferencetableRequiredProperty.addFilter(filter);
 }